Catalytic Ozonation: Promising and Effective Method for Dye Wastewater

Abstract

Treatment of wastewater which comes from the various industries is an become crucial problem because they contain different dye types and harmful compounds which reduced self-purification process in the environment and caused carcinogenic effect on human health. Now a day’s Advance Oxidation Processes has gain attraction for treatment of dye wastewater. The effectiveness of an Advance Oxidation Process is proportional to its ability to generate hydroxyl radicals. Catalytic ozonation allows a quicker removal of organic pollutants, because catalysts improve the oxidizing power of ozone, markedly reducing the economic cost. Catalytic activity of Titanium dioxide, Zink oxide, Nickel supported on γ-Al2O3 catalysts towards the ozonation of RB-5 dye wastewater was investigated.